Best 6NS7 Preamp for a Pass Labs XA25 amp

pfeiffer - May I ask you which Dueland caps she used and did you send your unit to Kara herself to do the upgrade?  Also, how would you describe the sonic change from the original caps which I assume you were using before the upgrade. Thanks!

@gadios Can you report on the ss kit you referenced?

For people who don't know, Wayne Coburn is the designer of the pass labs preamps. I'd like to give it a shot to compare against my Don Sachs pre (I have first watt f4 mono blocks).

Just curious what it's called...

Don Sachs custom pre.  A stunning 3D, holographic unit with the right speakers.  Uses those killer Miflex caps and the new WE Plus series Shuguang 6sn7's.  In the past I wouldn't have given you a nickel for a chinese tube, but this new Dawning series is a concerted effort by the top chinese techs to build the best current production tubes.  I've had mine for a couple months now and I just live it with Spatial Audio OB speakers.  The music just surrounds you.  That suggestion of the lightly used one from someone above is a great suggestion.

@gkr7007 Just a tip that you may consider trying some alternative caps on your secondary output.  I've got Duelund tinned copper CAST and love them, but have also tried Mundorf and gotten a significant leap up in 3-dimensionality over the Miflex's.  Another member (@wig) replaced his with V-CAP Odams and absolutely loved the change.  I also love my DS pre, and did so both before cap changes and after...